CVE-2026-55110: ubiquiti inc cloud gateways
CVSS: 7.5v3.1HighUndergoing analysis
Published 02-07-2026Last modified 02-07-2026
Vulnerability summary
CVE-2026-55110 is a high (CVSS 7.5) vulnerability in ubiquiti inc cloud gateways. EPSS estimates a 0.27% chance of exploitation in the next 30 days, higher than 18.1% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.1 (CVE.org)EPSS score
0.27%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 02-07-2026PublishedVulnerability first disclosed.
- 02-07-2026Last modifiedVulnerability information updated.
Description
A malicious actor who lures an authenticated user to a malicious page could exploit a Cross-Origin Resource Sharing (CORS) misconfiguration found in UniFi OS to trigger actions in UniFi OS using that user's session.
CVSS metrics
2 scores · 2 sources · 1 versionHigh 7.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:HSources2 sources · 6.1–7.5
- NVDNIST6.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NDiffers
EPSS trend
Probability
0.27%
Chance of exploitation in the next 30 days
Percentile
18%
Versus all other CVEs
30-day change
0.00 pp
From 0.27% on 19-09-2026
19-09-202619-10-2026
EPSS score0.27%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ui30 products
- enterprise_firewall_core_firmware≤ 5.1.18
- enterprise_fortress_gateway_firmware≤ 5.1.15
- enterprise_network_video_recorder_firmware≤ 5.1.15
- enterprise_network_video_recorder_core_firmware≤ 5.1.15
- unas_2_firmware≤ 5.1.16
Ubiquiti inc12 products
- cloud gateways< 5.1.19
- cloud keys< 5.1.19
- dream machines< 5.1.19
- dream routers< 5.1.19
- dream wall< 5.1.19
2 vendors · 42 products